Cottage Hills is located at latitude 38.903 and longitude -90.07. The elevation of Cottage Hills is 512 feet above mean sea level.

Since Cottage Hills is located within the Rosewood Heights CDP, all of the census and demographic data for residents of Cottage Hills are included as part of the information reported for Rosewood Heights CDP in the "Data" tab above.

(Note: CDP = Census Designated Place. A CDP is a statistical area delineated locally specifically for the tabulation of Census Bureau data. While CDPs have specified boundaries, these boundaries have no legal significance.)